Law and order in Clifton, Deddington and Hempton are the responsibility of Thames Valley Police, covering the Berkshire, Buckinghamshire and Oxfordshire, an area of 2,220 square miles.

Every neighbourhood in Thames Valley has a dedicated Neighbourhood Policing Team, made up of a Neighbourhood Sergeant and Neighbourhood Officers and Police Community Support Officers (PCSOs).This is the team in 2017.

The Deddington Police Office is in the Old Court House (the Library building), High Street, Deddington, Banbury, OX15 0SH and is run by a team of volunteers who are available for crime prevention advice, lost property enquiries, crime/incident reporting and to offer support to members of the community.